Толковый словарь английского языка - vitamin
Vitamin
vitamin
noun Etymology: alteration of ~e, from Latin vita life + English amine Date: circa 1912 any of various organic substances that are essential in minute quantities to the nutrition of most animals and some plants, act especially as coenzymes and precursors of coenzymes in the regulation of metabolic processes but do not provide energy or serve as building units, and are present in natural foodstuffs or sometimes produced within the body
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1.
n. any of a group of organic compounds essential in small amounts for many living organisms to maintain normal health and development. Phrases and idioms vitamin A = RETINOL. vitamin B complex (or B vitamins) any of a group of vitamins which, although not chemically related, are often found together in the same foods. vitamin B1 = THIAMINE. vitamin B2 = RIBOFLAVIN. vitamin B6 = PYRIDOXINE. vitamin B12 = CYANOCOBALAMIN. vitamin C = ASCORBIC ACID. vitamin D any of a group of vitamins found in liver and fish oils, essential for the absorption of calcium and the prevention of rickets in children and osteomalacia in adults. vitamin D2 = CALCIFEROL. vitamin D3 = CHOLECALCIFEROL. vitamin E = TOCOPHEROL. vitamin K any of a group of vitamins found mainly in green leaves and essential for the blood-clotting process. vitamin K1 = PHYLLOQUINONE. vitamin K2 = MENAQUINONE. vitamin M esp. US = FOLIC ACID. Etymology: orig. vitamine f. L vita life + AMINE, because orig. thought to contain an amino acid ...Толковый словарь английского языка Oxford English Reference
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